Semi professional on the road and recording with this monster never let me down fat juicy tones Larger than life right out of the Box! Sounded amazing with every one of my guitars Paul Reed Smith, Gibson, Fender & Jackson you name it this Amp produces.These were only made and limited numbers I met with several of the Mesa Representatives Extremely knowledgeable and they agreed this amp was something special Nearly impossible to find right now Extremely Rare a mythical unicorn The Holy Grail